The Western Journal of Medicine and Surgery, March 1845. Animal Communities Of An Illinois Prairie by N.W.Shackleford. The Vegetational History Of The Middle West by Henry Allan Gleason. Some Features Of Early Woodland And Prairie Settlement In A Central Iowa County. Botanical Features of the Prairies of Illinois in Ante-Railroad Days by Richard Woldemar Hilgard. Traveling In Illinois In 1819 by Ferdinand Ernst. Files Headings: Climate. Tree Cultivation. Native Trees. Prairies. Engleman. Hilgard. Soils.